Stumper: What computers are these?

[Tony Duell]

> > One thing bothers me. There's no evidence of the internal printer (at the 
> > rear right of the keyboard). That means it _might_ have started life as a 
> > 9831 (the BASIC-language model, which didn't have the printer AFAIK). I 
> > hope not, that machine is, I am told, rather rare.
> > 
> 
> You would hope they would use something easy to get...  ie the way 
> of least resistance!

Well, I did find a 9831 in a skip (dumpster). Said skip had quite a bit 
of nice HP stuff in it, and I'd been given permision to rescue it. I 
grabbed the ploter, 1350 graphics translator, etc. I nearly didn't bother 
with the machine, it looked like a 9825, and I had one of those (and had 
just given another one away). But I decided to pull it out to get the 2 
I/O modules thst were in it. At that point I saw the nameplate was 
'9831'. I'd never heard of that, so I grabbed it.

-tony